a guy who incessantly cheeses on girls, showering them with attention, compliments and, in extreme cases, gifts. Most cakers are guys who could not hook up without engaging in said activities, and even then it's somewhat of a struggle.
Additionally, cakers tend not to be particularly discriminatory in the looks department (i.e., their caking is not exclusive to attractive females).
Also note that many cakers believe that they are studs, but they're really just every girl's platonic friend because he kisses their asses.
"Damn, did you see Nick at that party tonight? He told like every girl there she was pretty. What a caker!"
A guy who supports, both financially and emotionally, a marginally attractive female with few redeeming qualities. Mainstream origins derive from a Master P song. In common usage, it's highly synonymous with caker
"Damn, Nick is always with Amy, taking her out, buying her shit. And that girl is busted! What a Captain Kirk!"